update issue template to ensure log is not truncated

.github/ISSUE_TEMPLATE/bug_report.md

@@ -8,27 +8,37 @@ assignees: ''
 ---
 
 **Describe the bug**
+
 A clear and concise description of what the bug is.
 
 
 **Expected behavior**
+
 A clear and concise description of what you expected to happen.
 
 **Log**
+
 Add
-```
+```dart
 import 'package:logging/logging.dart';
 import 'package:intl/intl.dart';
 ```
 add the following lines before `registerWith()`
-```
+```dart
   Logger.root.level = Level.ALL;
   final df = DateFormat("HH:mm:ss.SSS");
   Logger.root.onRecord.listen((record) {
-    print('${record.loggerName}.${record.level.name}: ${df.format(record.time)}: ${record.message}');
+    debugPrint(
+        '${record.loggerName}.${record.level.name}: ${df.format(record.time)}: ${record.message}',
+        wrapWidth: 0x7FFFFFFFFFFFFFFF);
   });
 ```
 and
+
+<details>
+<summary>log</summary>
+
 ```
-Past log here
+PASTE LOG HERE
 ```
+</details>